diff --git a/cluster/kubernetes/observability/grafana/app/helmrelease.yaml b/cluster/kubernetes/observability/grafana/app/helmrelease.yaml
index 8fb7de7..4da4c72 100644
--- a/cluster/kubernetes/observability/grafana/app/helmrelease.yaml
+++ b/cluster/kubernetes/observability/grafana/app/helmrelease.yaml
@@ -8,7 +8,7 @@ spec:
   chart:
     spec:
       chart: grafana
-      version: 8.6.3
+      version: 8.6.4
       sourceRef:
         kind: HelmRepository
         name: grafana